US4999878A - Thrust bearing assembly in a pinless hinge structure - Google Patents
Thrust bearing assembly in a pinless hinge structure Download PDFInfo
- Publication number
- US4999878A US4999878A US07/443,561 US44356189A US4999878A US 4999878 A US4999878 A US 4999878A US 44356189 A US44356189 A US 44356189A US 4999878 A US4999878 A US 4999878A
- Authority
- US
- United States
- Prior art keywords
- hinge
- thrust bearing
- bearing member
- hinge members
- projections
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 230000002401 inhibitory effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229920004943 Delrin® Polymers 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000007907 direct compression Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D3/00—Hinges with pins
- E05D3/06—Hinges with pins with two or more pins
- E05D3/12—Hinges with pins with two or more pins with two parallel pins and one arm
- E05D3/122—Gear hinges
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D1/00—Pinless hinges; Substitutes for hinges
- E05D1/04—Pinless hinges; Substitutes for hinges with guide members shaped as circular arcs
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/71—Toothed gearing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S16/00—Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
- Y10S16/27—Bearings
Definitions
- the present invention generally relates to pinless hinge structures, and more particularly, to an improved thrust bearing assembly for inhibiting relative longitudinal movement between hinge members of a pinless hinge structure.
- a hinge structure typically includes two hinge members which are rotatably secured together by a pin or the like.
- Automatically operated doors such as those used at shopping centers, schools, or the like are continually operated and are substantially heavier and larger than those used in most homes. As will be understood, continual use of the door submits the hinge structure to extensive wear. Notwithstanding their continual use and the substantial load placed thereon, a hinge structure is expected to perform error-free and with minimum maintenance.
- hinge members Increases in height and/or weight of the door or the like carried by the hinge members, adds to the frictional sliding contact between the hinge members and thereby increases the wear on the hinge structure.
- the hinge members are not normally permitted to longitudinally move relative to each other during operation.
- a pinless hinge structure offering increased performance and durability.
- Such a hinge structure includes two longitudinally extending hinge members which are rotatably joined along adjacent longitudinal edges by mutually intermeshing gear segments forming part of the hinge members.
- a clamp member maintains the gear segments in mesh relative to each other while permitting smooth and uniform movement of the hinge members through a full arc of travel of the hinge.
- My patented longitudinal thrust bearing comprises an essentially solid bearing member disposed in longitudinally coextensive recesses formed in adjacent longitudinal edges of each rotatable hinge member.
- the longitudinal dimensions of the bearing member and the recesses in which the bearing member is disposed are such that upper and lower surfaces of the recesses slidably contact upper and lower bearing surfaces of the bearing member disposed therein whereby inhibiting longitudinal movement of one hinge member with respect to the other hinge member.
- thrust bearings are typically arranged along the length of the hinge structure. Providing several thrust bearings along the length of the door, however, increases both labor and material costs involved in assembling and fabricating the hinge structure. As will be appreciated, each additional thrust bearing member increases the material costs involved in fabricating the hinge structure.
- each lateral recess and corresponding length of each thrust bearing is partially determined by the cantilevered loading applied to each thrust bearing. It has been found that insufficient length of the thrust bearing will result in twisting of the thrust bearing as it transfers the load across the adjacent lateral recesses in the opposing hinge members. To maximize the load bearing capability of a thrust bearing for a pinless hinge structure, it is desirable that the ratio of the longitudinal dimension of the thrust bearing is increased relative to the width of the thrust bearing. Increasing the longitudinal dimension of the thrust bearing, however, involves removal of additional material from the hinge members which adversely affects the lateral strength of the hinge structure.
- a thrust bearing assembly for a hinge structure having two longitudinally extending hinge members and a longitudinally extending clamp member.
- the two hinge members are rotatably joined to each other in a manner permitting smooth and uniform movement through a full arc of travel of the hinge structure.
- the thrust bearing assembly includes a one-piece thrust bearing member having multiple and substantially corresponding bearing support surfaces which are joined longitudinally to each other. Each bearing support surface extends laterally across adjacent longitudinal edges of the hinge members to inhibit relative longitudinal movement between the hinge members.
- the hinge members of the hinge structure are rotatably joined along their adjacent longitudinal edges by gear segments which are maintained in intermeshing engagement by the clamp member.
- the clamp member is configured with longitudinally extending, inwardly turned ends about which the hinge members rotate.
- the thrust bearing member has a series of longitudinally spaced, lateral projections which extend through a series of longitudinally spaced lateral recesses defined along adjacent edges of the hinge member. Each projection extends across the gear segments of the hinge member in a manner inhibiting relative longitudinal movement of the hinge members. Each projection on the thrust bearing member defines a pair of longitudinal channels which accommodate the inwardly turned ends of the clamp member.
- the thrust bearing member is formed from a non-metallic material for reducing frictional contact between it and the hinge members thereby advantageously increasing the durability of the bearing assembly. If desired, the thrust bearing member may be releasably secured to the clamp member as with any suitable device.
- Each lateral projection on the thrust bearing member is joined to another by a web.
- the web is sufficiently strong enough to resist breakage from the cantilevered forces applied to the lateral projections by the hinge members.
- the web is formed with concave surfaces which match the curvature of and receive the gear segments of the hinge members.
- the thrust bearing member of the present invention has an increased ratio of length to the internal dimension of the clamp member, and it is the clamp member which the bearings of a pinless hinge contact to derive stability.
- the clamp member of a pinless hinge confines the bearings and thus resists twisting in the bearings.
- the extended length enables the bearing member to maintain better alignment, whereas the multiple projections provide an aggregate of bearing surface area which is a multiple of my previous bearing design.
- the increase in bearing surface area facilitates a reduction in bearing surface wear. Accordingly, maintenance on the thrust bearing assembly is reduced and the overall durability of the hinge structure is enhanced. Because the thrust bearing assembly of the present invention has a one-piece design, there is no increase in the number of parts to be handled during assembly of the hinge structure.
- FIG. 1 is a fragmentary perspective view of an advantageous form of a thrust bearing assembly according to the present invention as arranged in combination with a hinge structure;
- FIG. 2 is an enlarged top plan view of the hinge structure illustrated in FIG. 1;
- FIG. 3 is an enlarged fragmentary elevational view of the hinge structure of FIG. 1 with the thrust bearing assembly of the present invention removed therefrom;
- FIG. 4 is a perspective view of the thrust bearing assembly of the present invention.
- FIG. 5 is an elevational view of the thrust bearing assembly of the present invention.
- FIG. 6 is a side elevational view of the thrust bearing assembly
- FIG. 7 is a plan view of the thrust bearing assembly
- FIG. 8 is an enlarged fragmentary elevational view of the hinge structure of FIG. 1 with the thrust bearing assembly of the present invention inserted therein;
- FIG. 9 is a sectional view taken along line 9--9 of FIG. 8 and illustrating hinge members of the hinge structure in an open position
- FIG. 10 is a sectional view similar to FIG. 9 illustrating the hinge members in a closed position.
- a thrust bearing assembly 10 is schematically illustrated in combination with a hinge structure 12.
- the hinge structure 12 comprises first and second longitudinally extending hinge members or leaves 14, 16 which are rotatably joined to each other.
- a longitudinally extending clamp member 18 maintains the hinge members 14, 16 in rotatable association relative to each other throughout their range of movement.
- the hinge members can be formed from a wide variety of metals, plastics, and other materials and can be fabricated by machining the members from stock of appropriate cross section, or by rolling, drawing, die casting, or preferably, by extruding these materials. In the later case, any extrudable material of the requisite strength may be employed such as brass, aluminum, thermoplastic polymers, and the like.
- the hinge members are rotatably joined along adjacent longitudinal edges.
- the illustrated configuration of the hinge members 14, 16 allows them to rotate through an arc of travel extending about 180 degrees between open and closed positions
- the principles of the present invention equally apply to other hinge structures.
- the principles of the present invention are readily applicable to a pinless hinge structure which is rotatable through an extended arc of travel such as that disclosed in my copending patent application filed on Nov. 6, 1989 under Ser. No. 432, 587; the full teachings of which are incorporated herein by reference.
- the principles of the present invention can be applied to a pinless hinge structure wherein each of the hinge members has a shifting axis of rotation such as that disclosed in my co-pending patent application filed on Nov. 13, 1989 under Ser. No. 434,312; the full teachings of which are incorporated herein by reference.
- the first hinge member 14 is formed with a longitudinally extending gear segment or portion 20 at one longitudinal edge and has an outwardly extending leg portion 21 integrally formed therewith.
- a longitudinal edge of the second hinge member 16 is similarly formed with a longitudinally extending gear segment or portion 22 which is in mutual intermeshing relation with gear segment 20 on hinge 14.
- Hinge member 16 further includes an outwardly extending leg portion 23 formed integrally with the gear segment 22.
- the leg portions 21, 23 of the hinge members 14, 16, respectfully, are secured to door panels 25, 27 or the like by any suitable fastener means such as screws or the like.
- Each gear segment 20, 22 defines a longitudinally extending channel 24 which provides each gear segment with a longitudinally extending cylindrical bearing surface which coincides with the axes of rotation of the respective gear segment 20, 22. As shown in FIG. 2, the gear teeth of the gear segments 20, 22 intermesh to rotatably join the hinge members 14, 16 to each other.
- the longitudinally extending clamp member 18 has a generally channel-shaped or C-shaped cross section.
- the inwardly turned ends of the clamp member 18 are formed with longitudinally extending rod-like bearing portions 26 and 28 which contact and cooperate with the cylindrical bearing surfaces defined by channels 24 at the axis of rotation of hinge members 12, 14.
- the hinge members which comprise the hinge structure are interconnected by longitudinal engagement of the gear segments 20, 22, and by the longitudinal engagement of the rod-like bearing portions 26 and 28 with the channels 24, the hinge members 14 and 16 are not in any way longitudinally interconnected. As a result, there is nothing, apart from friction, to prevent relative longitudinal movement of the hinge members 14, 16 to each other.
- the thrust bearing assembly 10 of the present invention inhibits longitudinal movement of the hinge members 14, 16 relative to each other.
- more than one thrust bearing assembly may be provided along the length of the hinge structure to distribute the load-bearing capability of the hinge structure over the length thereof.
- only one thrust bearing assembly will be discussed in detail with the understanding that other thrust bearing assemblies may be substantially similar in construction.
- the hinge members 14, 16 define a plurality of longitudinally spaced recesses which are adapted to accommodate a thrust bearing assembly of the present invention.
- the number of recesses provided in the hinge members will be governed by the design of the thrust bearing assembly.
- each of the recesses are substantially similar, only the top most recess will be described in detail with the understanding that the other recesses are substantially similar.
- Each recess is defined by a pair of coextensive lateral slots or notches 30 and 32 defined along adjacent longitudinal edges of the hinge members 14, 16.
- the lateral slots or notches 30, 32 provides each recess with upper and lower laterally extending marginal surfaces 34 and 36, respectively.
- the thrust bearing assembly 10 of the present invention is provided to inhibit relative longitudinal movement between the hinge members 14, 16 of the hinge structure.
- the thrust bearing assembly 10 includes a thrust bearing member 46 having a plurality of longitudinally spaced lateral projections 48, 50 and 52 which are joined to each other by webs 54 and 56.
- the thrust bearing member 46 is a one-piece molded design that is from a non-metallic material such as acetal resin-type plastic. Such material is commonly sold under the trade name "Delrin" by DuPont Corporation.
- the projections 48, 50 and 52 substantially correspond in configuration to each other and each includes upper and lower generally planar support surfaces 60 and 62 which extend across adjacent longitudinal edges of the hinge members 14, 16 when the bearing assembly 10 is received in the recesses defined by the hinge members.
- the ratio of the distance between each pair of support surfaces 60 and 62 and the length of the overall bearing member 46 is selected to inhibit twisting of the thrust bearing member thereby improving its alignment with the gear segments 20 and 22.
- the bearing member 46 is considerably longer than the height of any one of its projections 48, 50, 52, and whereas the projections 48, 50, 52, if separate and detached from each other might twist under load, when united into the bearing member 46 of greater longitudinal dimension, they experience less twisting.
- Each projection 48, 50, 52 on the thrust bearing member further defines a pair of longitudinally extending channels 64 and 66 that receive the rod-like bearing portions 26 and 28 of the clamp member 18 and through which these rod-like bearing portions longitudinally extend through the recesses.
- the thrust bearing member 10 of the present invention preferably is formed as a one-piece molded design
- the thrust bearing assembly may use inserts arranged between each of the projections 48, 50 and 52 and the upper and lower marginal surfaces 34, 36, respectively, of each recess formed in the hinge members.
- inserts are in accordance with the principles disclosed in my co-pending patent application filed on Nov. 6, 1989 under Ser. No. 432,575; the full teachings of which are incorporated herein by reference.
- each projection 48, 50, 52 or the thrust bearing member 46 are removably accommodated within the recesses defined along adjacent longitudinal edges of the hinge members 14 and 16.
- the longitudinal dimension between the upper and lower support surfaces 60, 62, respectively, of each projection and the longitudinal distance separating the upper and lower marginal surfaces 34, 36, respectively, of each recess formed in the hinge members are such that there is just sufficient clearance therebetween to permit the hinge members 14, 16 to swing or be rotated in an arcuate path of travel without binding on the thrust bearing assembly.
- each recess in the hinge members is laterally dimensioned to permit the hinge members 14, 16 to be rotated between open and closed positions without bending on the thrust bearing assembly.
- the thrust bearing member 46 advantageously has a cross-sectional configuration that conforms essentially to the cross-sectional configuration of the interior of clamp member 18.
- the cross-sectional configuration of the thrust bearing member 46 provides each of the lateral projections with a relatively large planar surface area for supporting the hinge members 14, 16, whether the hinge members are in an open position (FIG. 9) or a closed (FIG. 10) position.
- a salient feature of the present invention is its ability to substantially increase the bearing surface area and thereby reduce frictional sliding contact between the hinge members and the bearing member without substantially reducing the lateral strength of the hinge structure.
- the bearing of the present design maintains better alignment (resistance to twist) while at the same time providing an aggregate of bearing surface area which is a multiple of the original thrust bearing design. That is, the design of the present invention improves the bearing members resistance to twist, provides more total bearing surface area and has no increase in the number of parts to be handled during assembly of the hinge structure.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hinges (AREA)
Abstract
Description
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/443,561 US4999878A (en) | 1989-11-29 | 1989-11-29 | Thrust bearing assembly in a pinless hinge structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/443,561 US4999878A (en) | 1989-11-29 | 1989-11-29 | Thrust bearing assembly in a pinless hinge structure |
Publications (1)
Publication Number | Publication Date |
---|---|
US4999878A true US4999878A (en) | 1991-03-19 |
Family
ID=23761283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/443,561 Expired - Lifetime US4999878A (en) | 1989-11-29 | 1989-11-29 | Thrust bearing assembly in a pinless hinge structure |
Country Status (1)
Country | Link |
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US (1) | US4999878A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2252788A (en) * | 1991-02-12 | 1992-08-19 | Stanley Works | Continuous hinge with improved bearing design. |
US5337451A (en) * | 1992-08-04 | 1994-08-16 | Pemko Manufacturing Company | Gear hinge |
WO1998029630A1 (en) * | 1996-12-26 | 1998-07-09 | Baer Austin R | Continuous hinge with a longitudinally supported portion and a longitudinally free end |
US5832566A (en) * | 1995-09-28 | 1998-11-10 | Hewlett-Packard Company | Friction hinge device |
WO1999010617A1 (en) * | 1997-08-22 | 1999-03-04 | Baer Austin R | Torque resistant hinge bearing |
US6691370B2 (en) * | 2002-04-15 | 2004-02-17 | Markar Aritectural Products, Inc. | Continuous door hinge with multi-plastic bearings |
US6694568B2 (en) | 2000-09-20 | 2004-02-24 | Austin R. Baer | Hinge mounting system |
US6859980B2 (en) | 2002-06-06 | 2005-03-01 | Austin R. Baer | Covered pinned hinge |
US20060225250A1 (en) * | 2005-04-06 | 2006-10-12 | Noubar Yeremlan | Hinge system for storm door |
US9290974B2 (en) | 2014-03-04 | 2016-03-22 | Special-Lite Inc. | Geared hinge assembly |
US9297190B2 (en) * | 2013-08-20 | 2016-03-29 | Chen-Hsiang Lee | Hinge device for a folding door |
US9428946B2 (en) * | 2012-09-19 | 2016-08-30 | Famar Muebles, S.L. | Hinge for furniture |
US20200011102A1 (en) * | 2018-07-06 | 2020-01-09 | Overhead Door Corporation | Telescoping door with swing clear breakout hinge |
US20220220785A1 (en) * | 2021-01-14 | 2022-07-14 | ASSA ABLOY Accessories and Door Controls Group, Inc. | Split hinge |
US11512513B2 (en) * | 2017-05-11 | 2022-11-29 | Julius Blum Gmbh | Piece of furniture and assembly for use in a piece of furniture |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3402422A (en) * | 1965-12-10 | 1968-09-24 | Austin R. Baer | Hinge |
-
1989
- 1989-11-29 US US07/443,561 patent/US4999878A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3402422A (en) * | 1965-12-10 | 1968-09-24 | Austin R. Baer | Hinge |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2252788A (en) * | 1991-02-12 | 1992-08-19 | Stanley Works | Continuous hinge with improved bearing design. |
GB2252788B (en) * | 1991-02-12 | 1994-11-09 | Stanley Works | Continuous hinge with improved bearing design |
US5337451A (en) * | 1992-08-04 | 1994-08-16 | Pemko Manufacturing Company | Gear hinge |
USRE35618E (en) * | 1992-08-04 | 1997-10-07 | Pemko Manufacturing Company | Gear hinge |
US5832566A (en) * | 1995-09-28 | 1998-11-10 | Hewlett-Packard Company | Friction hinge device |
WO1998029630A1 (en) * | 1996-12-26 | 1998-07-09 | Baer Austin R | Continuous hinge with a longitudinally supported portion and a longitudinally free end |
US5778491A (en) * | 1996-12-26 | 1998-07-14 | Baer; Austin R. | Continuous hinge with a longitudinally supported portion and a longitudinally free end |
WO1999010617A1 (en) * | 1997-08-22 | 1999-03-04 | Baer Austin R | Torque resistant hinge bearing |
US6073310A (en) * | 1997-08-22 | 2000-06-13 | Baer; Austin R. | Torque resistant hinge bearing |
US6694568B2 (en) | 2000-09-20 | 2004-02-24 | Austin R. Baer | Hinge mounting system |
US6732409B2 (en) | 2000-09-20 | 2004-05-11 | Austin R. Baer | Hinge mounting system |
US20040134034A1 (en) * | 2000-09-20 | 2004-07-15 | Baer Austin R. | Hinge mounting system |
US6928713B2 (en) | 2000-09-20 | 2005-08-16 | Austin R. Baer | Hinge mounting system |
US6691370B2 (en) * | 2002-04-15 | 2004-02-17 | Markar Aritectural Products, Inc. | Continuous door hinge with multi-plastic bearings |
US6859980B2 (en) | 2002-06-06 | 2005-03-01 | Austin R. Baer | Covered pinned hinge |
US20060225250A1 (en) * | 2005-04-06 | 2006-10-12 | Noubar Yeremlan | Hinge system for storm door |
US9428946B2 (en) * | 2012-09-19 | 2016-08-30 | Famar Muebles, S.L. | Hinge for furniture |
US9297190B2 (en) * | 2013-08-20 | 2016-03-29 | Chen-Hsiang Lee | Hinge device for a folding door |
US9290974B2 (en) | 2014-03-04 | 2016-03-22 | Special-Lite Inc. | Geared hinge assembly |
US11512513B2 (en) * | 2017-05-11 | 2022-11-29 | Julius Blum Gmbh | Piece of furniture and assembly for use in a piece of furniture |
US20200011102A1 (en) * | 2018-07-06 | 2020-01-09 | Overhead Door Corporation | Telescoping door with swing clear breakout hinge |
US10851569B2 (en) * | 2018-07-06 | 2020-12-01 | Overhead Door Corporation | Telescoping door with swing clear breakout hinge |
US20220220785A1 (en) * | 2021-01-14 | 2022-07-14 | ASSA ABLOY Accessories and Door Controls Group, Inc. | Split hinge |
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Legal Events
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Owner name: ROTON BARRIER, INC., A CORP. OF MISSOURI, MISSOURI Free format text: LICENSE;ASSIGNOR:BAER, AUSTIN R.;REEL/FRAME:005285/0144 Effective date: 19900420 |
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Owner name: ROTON BARRIER, INC., MISSOURI Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BAER, AUSTIN R.;REEL/FRAME:007322/0470 Effective date: 19900102 |
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